[PRISM] Enable more passing tests

test/.excludes-prism/TestParse.rb

@@ -4,7 +4,6 @@ exclude(:test_invalid_char, "unknown")
 exclude(:test_location_of_invalid_token, "unknown")
 exclude(:test_percent, "unknown")
 exclude(:test_question, "unknown")
-exclude(:test_shareable_constant_value_ignored, "comment-only line warning")
 exclude(:test_string, "unknown")
 exclude(:test_truncated_source_line, "unknown")
 exclude(:test_unexpected_eof, "unknown")

test/.excludes-prism/TestPatternMatching.rb

@@ -1,2 +0,0 @@
-exclude(:test_hash_pattern, "useless literal warning missing")
-exclude(:test_invalid_syntax, "[a:] is disallowed")

test/.excludes-prism/TestRubyLiteral.rb

@@ -1,5 +1,3 @@
-exclude(:test_debug_frozen_string_in_array_literal, "unknown")
-exclude(:test_debug_frozen_string, "unknown")
 exclude(:test_dregexp, "https://github.com/ruby/prism/issues/2664")
 exclude(:test_hash_value_omission, "unknown")
 exclude(:test_string, "https://github.com/ruby/prism/issues/2331")